mooleane



(No Model.) 4 Sheets-Sheet 1.

G. F. MOGLEANE 8: W.- M. FABER, Jr. MILL APPLIANCE.

No. 426,046. Patented Apr. 22, 1890.

WITNESSES. 9

MAL

(No Model.) 4 Sheets-Sheet 3.

G. 15'. MOCLEANE & W. M. FABER, Jr. MILL APPLIANGE.

1' WITNESSES.

(No Model.) 4 SheetsSheet 4.

G. P. McGLEANE & W. M. FABER, Jr.

MILL APPLIANCE No. 426,046. Patented Apr. 22, 1.890.

INVENTOR.

WITNESSES.

UNITED STATES PATENT OFFICE.

GEORGE F. MCCLEANE, OF ALLEGHENY, AND XVILLIAM M. FABER, JR, OFPITTSBURG, PENNSYLVANIA.

MILLAPPLIANCE.

SPECIFICATION forming part of Letters Patent No. 426,046, dated April22, 1890.

Application filed November 23, 1889- $e1ia1 No. 331,296. (No model.)

To all 1071/0712 it may concern:

Be it known that we, GEORGE F. MCCLEANE, of Allegheny, and \VILLIAM M.FABER, Jr., of Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in MillAppliances, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in Wl1lCl1- Figure 1 is a plan view of ourimproved crane and metal-supporting device or grippers. Fig. 2 is a sideelevation thereof, the lower part of the mast of the crane being showninvertical section. Fig. 3 is an enlarged vertical section of the lowerpart of the craneinast, including the cylinder and plunger, and showingthe valves in side elevation. at is a similar view of the top of themast. Fig. 5 is a side elevation of the outer part of the jib and themetal-supporting device or grippers. Fig. 6 is a vertical section on theline VI VI of Fig. 5. Figs. 7 and 8 are plan views of themetal-supporting device or grippers, showing the jaws open and closed,respectively. Fig. 9 is an enlarged perspective view thereof, showing itin the act of gripping and supporting a metal piece or pile.

Like symbols of reference indicate like parts in each.

The parts of the apparatus shown in the drawings to which our inventionrelates are the following: first, the arrangement of theWater-connections at the base of the mast of the crane; second, thegrippers or metal-supporting device; third, the manner of its supportfrom the jib and the means by which the thrust occasioned by the gravityof its burden is taken up by the jib, and, fourth, the arrangement andlocation of the cylinder by which the buggy of the peel is moved on theib. J The purpose to which we have especially designed our improvementis for use as means for charging metal piles or pieces intoheating-furnaces and withdrawing them there from, and we shall sodescribe it, promising, however, that the invention is not limitedthereto, but is intended to cover generally the use of the apparatus forany purpose to which it may be applicable.

Referring now to the drawings, 2 represents the mast of the crane, whichis or maybe composed of metah beams secured at their upper ends to ablock or casting 3, which forms the top journal, and at thebasc securedto the usual upright cylinder i and t0 the lock or casting 5, whichforms the bottom journal. The contracted portion or journal proper atthe end of the casting 5 has bearings in a plate 6 and in the base of abox 7 within which said plate is set, the weight of the crane beingsupported by anti-friction rollers S, interposed between the bottom ofthe casting and the surface of the plate. These rollers are preferablyconical in form, and the opposing faces of the casting and plate arecorrespondingly beveled. The mast is rotated by means of a rack 36,which is moved longitudinally by the plunger of an hydraulic cylinder37, and which meshes with the teeth of a spur-wheel 37, fixed to the journal-block 5. This cylinder is controlled by a valve 38, which isconnected with an accumulator or pump 39, and is also connected bybranch pipes 40 with the ends of the cylinder.

The base of the cylinder a is somewhat separated vertically from thesurface of the bottom journal, so as to afford an intermediate space topermit easy adjustment and coupling of the water-pipes. One of thesepipes 9 (the supply-pipe) extends vertically from a stuiiing-box 10beneath the bottom journal, through said journal, and thence to thevalves 11 12 13, which are supported on a suitable platform 14, attachedto the mast. The exhaust-pipe 19 extends from a stuffingbox 18 in thetop journal of the mast, and is connected by a passage leading throughthe journal-block to a pipe 19', which by suitable branched connectionscommunicates with the exhaust-ports of said valves. From the valve 11 apipe 11 leads to the base of the cylinder.

15 is the plunger of the cylinder, and 16 is the crane-jib, which isatlixed to a block 17 at the top of the plunger, so that it shall bemoved vertically with the latter. The jib is steadied in its verticalmotions by a stru't 20 and suitably arranged wheels 21, hearing againstthe beams which form the cranemast.

a supporting device or peel.

22 is the trolley which upholds the metal- It is mounted on wheels, onthe beams of which the jib is constituted, and is connected by a rod 23with the plunger of a hydraulic cylinder 24. The

jib extends to both sides of the mast, the trolley being on one side andthe cylinder on the other, so that the weight of the latter shall servepartially to counterbalance the jib. Water-supply pipes 25 extend fromthe valve 13 to both ends of the cylinder 24, and are provided withjointed or flexible connections 26, to permit the variations in distancebetween the cylinder and the valve caused by the vertical motions of thejib. By proper operations of the valve 13 water may be admitted toeither end of the cylinder 24 and the plunger and trolley movedlongitudinally on the jib in either direction. The stirrup or buggy bywhich the grippers or metal-support is upheld consists of metal framesor plates 27, which extend vertically from the trolley between the beamsof the jib, and are connected at the lower ends. A bar 28 is carried byand bolted to the stirrup 'thus formed, at the front end projectingconsiderably beyond the stirrup and at the rear extending upwardly tothe jib, and being provided with an anti-friction roller or wheel 29,which bears against the under side of the latter.

30 80 are the jaws of the tongs which form the grippers ormetal-support. These jaws are formed with horizontal portions pivoted at31 to the bar 28, and with vertical portions b, which extend downwardlyat the sides of the bar, and at their lower ends are provided withinwardly-turned lips c. The rear ends of the jaws 30 are connected byknee-levers 32 to a rod 33, which is fixed to the plunger of a hydrauliccylinder 34,thelatterbeing mounted on the bar 28 between the stirrups27, and

"being connected by jointed or flexible pipes 351p the valve 12, so thatby proper operation'of the valve the said rod may be proj ected orretracted and the partsb of the jaws 30 caused to approach or todiverge.

The general operation of the device in charging and withdrawing metal issimilar to that of the charging-cranes now employed. In the use of theapparatus the grippers or metal-support may be introduced into the doorof a furnace by turning the crane-mast so as to direct the crane-jibtoward the furnace and then projecting the buggy and peel by means ofthe cylinder 24.

To "ras a I a D port to the metal, and thus enables the device to beused in lifting metal piles composed of a number of pieces loosely boundtogether without danger of disarranging or separating them. If the jawsshould not grasp the metal exactly at the middle, the metal will berestrained by the top bar 28 from tipping and upsetting. .The action ofthe apparatus in this regard is shown in Fig. 9, in which the metalpiece is grasped on a line off the middle. Then the metal is thusgrasped, it may be lifted by raising the jib of the crane, and thenconveyed to any place within the sweep of the crane by turning thelatter or moving the trolley along the jib. When carried to the properplace, the piece is released by reversing the cylinder 34, and thusopening the gripper-jaws. For the purpose of enabling the grippers tooperate successfully in'lifting metal from or depositing it on the usualinclined hearth of a heating-furnace, we prefer to make the bar 28somewhat downwardly-inclined, as shown in the drawings. hen the metal issupported, the position of the weight at the end of the bar 28 will tendto tip the buggy and trolley; but the bearin g of the bar on the underside of the jib takes up the thrust thus occasioned and prevents theparts from tipping, while the wheel at the end of the bar prevents thefriction on the jib from impeding the longitudinal travel of the trolleyand buggy.

The advantages of our invention will be ap-' preciated by those skilledin the art construction of the parts may be varied in divers wayswithout departing from the invention as covered in the following claims,each one of which relates to a distinct item of the invention, coveringparts which may be used in other combinations. For example, the grippersclaimed herein may be used on cranes or charging apparatus of diiferentpattern, and the other parts of the apparatus to which claim is made maybe used with grippers or supporting devices of quite differentconstruction from that herein described.

We claim- 1. The combination, with the jib, of a travelin g buggy upheldthereby, a supporting device at one end thereof, and a brace or bar atthe other end having a bearing against the under side of the jib,substantially as and for the purposes described.

2. The combination, with the jib, of a traveling buggy upheld thereby, asupporting deact, a brace or bar at the earing against the under a wheelor roller at said y as and for the purposes ort or grippers consistingand upholding the .ng top or bar to prevent substantially as and for id.rt or grippers, jaws havidingportions with pro- The j ecting lips to fitunder and engage the metal at opposite sides and to support it, substantially as and for the purposes described.

5. The metal support or grippers consisting of jaws for grasping andupholding the metal, said jaws having downWardly-extending portions withlips to engage the metal at the bottom and to support it, and anoverlying top or bar to which the jaws are pivoted, substantially as andfor the purposes described.

6. The combination of the jib, a trolley, a stirrup or buggy dependingfrom said trolley, a bar projecting from said stirrup or buggy, jawscarried by the bar, and a cylinder carried by the stirrup or buggy andadapted to operate said jaws, substantially as and for the purposesdescribed.

7. The combination of the jib, a trolley, a stirrup or buggy dependingfrom said trolley, a bar projecting from said stirrup or buggy andhaving a bearin g at the rear against the under side of the jib, jawscarried by the bar, an d a cylinder carried by the stirrup or buggy andadapted to operate said jaws, substantially as and for the purposesdescribed.

8. The combination of the mast, a jib projecting to both sides thereof,a trolley on the jib on one side of the mast, and a cylinder on the jibon the other side of the mast for moving said trolley, substantially asand for the purposes described. 7

9. The combination of the mast, a bottom journal-block, and a cylinderl, said cylinder being somewhat elevated, substantially as and for thepurposes described.

10. The combination of a longitudinallymovable buggy or frame and adownwardlyinclined projecting bar carrying a metal-support or grippers,substantially as and for the purposes described.

In testimony whereof We have hereunto set our hands this 2d day ofNovember, A. D. 1889.

GEO. F. MCCLEANE. \VM. M. FABER, JR.

Witnesses:

W. P. POTTER, THoMAs W. BAKEWELL.

